Table 5 Correlation coefficients between types of surgery and covariates before and after weighting with propensity scores– types of surgery
Variables | Type | Uncorrected | Corrected | Status |
|---|---|---|---|---|
Age | Continuous | 0.161 | −0.043 | balanced |
Cumulative flying time | Binary | −0.270 | −0.240 | balanced |
Continuous near-work time | Binary | −0.372 | −0.266 | unbalanced |
AA | Continuous | −0.453 | −0.285 | unbalanced |
PRA | Continuous | −0.061 | −0.045 | balanced |
Postoperative period | Binary | 0.002 | −0.127 | balanced |
Spherical equivalent | Continuous | −0.632 | −0.425 | unbalanced |
UCVA | Continuous | −0.623 | −0.360 | unbalanced |
Age at surgery | Continuous | −0.129 | −0.150 | balanced |
IOP | Binary | 0.010 | 0.025 | balanced |